Will skies be clear over southern Ontario Sunday night?
Mostly cloudy skies are expected over most regions during the evening, followed by gradual clearing as mid-level moisture moves southward from southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Wednesday night?

Partly or mostly clear skies are likely during the evening, due to varying amounts of high cloud that may be visible, caused by jetstream-level moisture spreading over southern Ontario (illustrated below for late evening), and then increasing cloudiness is expected after midnight ahead of Thursday's low pressure trough.

Will skies be clear over southern Ontario Tuesday night?

Clear skies are expected during most of the night, except for increasing cloudiness before sunrise, caused by mid-level moisture which is forecast to move over southern Ontario during early morning (illustrated below for early Wednesday) and except for high clouds which are likely to begin appearing by about midnight, caused by jetstream-level moisture which is forecast to move southward over southern Ontario overnight (illustrated below for late evening).

Will skies be clear over southern Ontario Monday night?

Clear skies are expected overnight, due to a clear and dry airmass over Ontario.

Will skies be clear over southern Ontario Sunday night?
Cloudy skies are expected during the evening, followed by clearing skies after midnight over most regions, except for mostly cloudy skies continuing over southwestern regions, caused by moisture gradually moving southward from southern Ontario overnight (illustrated below for early Monday morning).

Will skies be clear over southern Ontario Saturday night?
Clear skies are expected during most of the night, until high cloudiness begins to appear before morning, caused by jetstream-level cloudiness which is forecast to begin spreading eastward over southern Ontario overnight.

Will skies be clear over southern Ontario Friday night? Mostly clear skies are expected over most regions, except for regions near Lake Ontario where some cloudiness will likely be visible during early evening, until moisture moves southward from southern Ontario (illustrated below for late evening).

Will skies be clear over southern Ontario Tuesday night?

Mostly clear skies are likely over most regions, except for some low clouds that are likely to appear over most regions, caused by low-level moisture over southern Ontario during most of the night (illustrated below for late evening).

Will skies be clear over southern Ontario Monday night?
Mostly cloudy skies are expected, except for partly clear skies during early evening (especially over southern and eastern regions) and partly clearing skies during early morning (especially over northern and western regions).

Will skies be clear over southern Ontario Saturday night?

Partly or mostly clear skies are expected over most regions by late evening, following some cloudiness during early evening. Some cloudiness may be visible over most regions due to low-level moisture which is forecast to be over southern Ontario during the evening (illustrated below for late evening).

Will skies be clear over southern Ontario Tuesday night?

Clear skies are expected during the evening and then increasing high cloudiness is expected after midnight, due to increasing moisture at middle and high levels which is forecast to move over southern Ontario before morning (illustrated below for early Wednesday).

Will skies be clear over southern Ontario Monday night?

Mostly cloudy skies are expected during the evening over most regions, followed by gradually clearing skies with some low cloudiness caused by low-level moisture (illustrated below for late evening) which is forecast to gradually move southeastward from southern Ontario overnight.

Will skies be clear over southern Ontario Friday night?

Mostly clear skies are expected, except for some mid-level cloud over some regions during early evening, caused by some mid-level moisture which is forecast to move southeastward from southern Ontario during the evening (illustrated below for early evening), and except for some high cloud that may appear occasionally over some regions.

Will skies be clear over southern Ontario Thursday night?

Partly or mostly clear skies are expected, except for high-level cloudiness that may be visible, caused by jetstream-level moisture which is forecast to move over southern Ontario overnight (illustrated below for mid-evening). Regions near, north of, and east of the GHTA are more likely to have clear skies until the high cloud appears later in the evening.

Will skies be clear over southern Ontario Tuesday night?

Partly clearing skies are expected, especially over southwestern regions, but lots of mid-level cloudiness is likely, due to extensive mid-level moisture (not illustrated below because of some sort of blogsite fault) which is forecast to gradually move southeastward from southern Ontario overnight.

Will skies be clear over southern Ontario Monday night?
Mostly clear skies are expected over most regions, after some early-evening cloudiness diminishes, until high cloudiness increases during early Tuesday, caused by high-level moisture which is forecast to move over southern Ontario (illustrated below for early Tuesday).

Will skies be cloudy over southern Ontario Sunday night?
Cloudy skies are expected during the evening, and then partly clearing skies are likely by about midnight over most regions (earlier in southwestern regions and later in eastern regions) as cloudiness gradually moves eastward from southern Ontario overnight.

Will skies be clear over southern Ontario Saturday night?
Mostly clear skies are expected after about mid-evening, except for lots of cloudiness during early evening, due to low-level moisture (illustrated below for early evening) followed by occasional periods of some low-level cloudiness over most regions overnight.